I too was told the likely cause was apnea, used a C-pap for 90 days, when my sleep doc had me in to get paid for the machine he sheepishly told me I had a MILD case and a candidate for an oral appliance.. of course he would $refer$$ me to a dentist. How I wish I hadn't had ablation, my cardio 5 mos later is altered. No boosters for me.